FR 1455 then FR 142 at Dublin
Milan → Dublin → London Gatwick
Timetable, Dublin time
15:55FR 1455 from Milan at the gate
11:20FR 142 to London Gatwick leaves the gate
19 h 25 apart on the timetable, overnight
FR 142 leaves 19 h 25 after FR 1455 arrives on the timetable: more than half a day, so not a connection we count.